Chainring for a bicycle



FIG. 1 is an isometric view of a top, front, and left side view of an ornamental design for a chainring for a bicycle;

FIG. 2 is a front elevational view of the chainring of FIG. 1;

FIG. 3 is a rear elevational view of the chainring of FIG. 1;

FIG. 4 is a right side elevational view of the chainring of FIG. 1;

FIG. 5 is a left side elevational view of the chainring of FIG. 1;

FIG. 6 is a top plan view of the chainring of FIG. 1;

FIG. 7 is a bottom plan view of the chainring of FIG. 1; and,

FIG. 8 is an isometric view of a top, rear, and right side view of the chainring of FIG. 1.

The broken lines are included for the purpose of illustrating portions of the chainring that form no part of the claimed design. 

CLAIM The ornamental design for a chainring for a bicycle, as shown and described. 